I think David is a good guess, but if she is into more modern names and might choose something unisex, I could see Dylan or Devin being the one.

Oh I didn't even think of Darcy. I have another friend who has a 22mth old Darcy and It very much suits him. My BF is not friends with this girl so she wouldn't make a link. Darcy would be lovely if she chose that one.